git: openjdk/mobile: 8237508: Simplify JarFile.isInitializing

[duke]

Changeset: fdbea219
Author:    Claes Redestad <redestad at openjdk.org>
Date:      2020-01-20 14:24:21 +0000
URL:       https://git.openjdk.java.net/mobile/commit/fdbea219

8237508: Simplify JarFile.isInitializing

Reviewed-by: dfuchs, coffeys, lancea

! src/java.base/share/classes/java/util/jar/JarFile.java
! src/java.base/share/classes/java/util/jar/JavaUtilJarAccessImpl.java
! src/java.base/share/classes/jdk/internal/access/JavaUtilJarAccess.java